mozilla-central/__GENERATED__/dom/bindings/IntersectionObserverBinding.cpp (file symbol)

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/* THIS FILE IS AUTOGENERATED FROM IntersectionObserver.webidl BY Codegen.py - DO NOT EDIT */
#include <type_traits>
#include "AtomList.h"
#include "DOMIntersectionObserver.h"
#include "IntersectionObserverBinding.h"
#include "MainThreadUtils.h"
#include "WrapperFactory.h"
#include "XrayWrapper.h"
#include "js/Array.h"
#include "js/CallAndConstruct.h"
#include "js/Exception.h"
#include "js/ForOfIterator.h"
#include "js/MapAndSet.h"
#include "js/Object.h"
#include "js/PropertyAndElement.h"
#include "js/PropertyDescriptor.h"
#include "js/experimental/JitInfo.h"
#include "mozilla/Atomics.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/dom/BindingCallContext.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMIntersectionObserver.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/DOMRect.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/XrayExpandoClass.h"
#include "nsIContent.h"
namespace mozilla::dom {
namespace binding_detail {}; // Just to make sure it's known as a namespace
using namespace mozilla::dom::binding_detail;
void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback, OwningElementOrDocument& aUnion, const char* aName, uint32_t aFlags)
{
if (aUnion.IsElement()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsElement(), "mElement", aFlags);
} else if (aUnion.IsDocument()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsDocument(), "mDocument", aFlags);
}
}
void
ImplCycleCollectionUnlink(OwningElementOrDocument& aUnion)
{
aUnion.Uninit();
}
bool
DoubleOrDoubleSequence::TrySetToDouble(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
double& memberSlot = RawSetAsDouble();
if (!ValueToPrimitive<double, eDefault>(cx, value, "Double branch of (double or sequence<double>)", &memberSlot)) {
return false;
} else if (!std::isfinite(memberSlot)) {
cx.ThrowErrorMessage<MSG_NOT_FINITE>("Double branch of (double or sequence<double>)");
return false;
}
}
return true;
}
bool
DoubleOrDoubleSequence::TrySetToDouble(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToDouble(cx, value, tryNext, passedToJSImpl);
}
bool
DoubleOrDoubleSequence::TrySetToDoubleSequence(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
binding_detail::AutoSequence<double>& memberSlot = RawSetAsDoubleSequence();
JS::ForOfIterator iter(cx);
if (!iter.init(value, JS::ForOfIterator::AllowNonIterable)) {
return false;
}
if (!iter.valueIsIterable()) {
DestroyDoubleSequence();
tryNext = true;
return true;
}
binding_detail::AutoSequence<double> &arr = memberSlot;
JS::Rooted<JS::Value> temp(cx);
while (true) {
bool done;
if (!iter.next(&temp, &done)) {
return false;
}
if (done) {
break;
}
double* slotPtr = arr.AppendElement(mozilla::fallible);
if (!slotPtr) {
JS_ReportOutOfMemory(cx);
return false;
}
double& slot = *slotPtr;
if (!ValueToPrimitive<double, eDefault>(cx, temp, "Element of sequence<double> branch of (double or sequence<double>)", &slot)) {
return false;
} else if (!std::isfinite(slot)) {
cx.ThrowErrorMessage<MSG_NOT_FINITE>("Element of sequence<double> branch of (double or sequence<double>)");
return false;
}
}
}
return true;
}
bool
DoubleOrDoubleSequence::TrySetToDoubleSequence(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToDoubleSequence(cx, value, tryNext, passedToJSImpl);
}
bool
DoubleOrDoubleSequence::Init(BindingCallContext& cx, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
MOZ_ASSERT(mType == eUninitialized);
bool done = false, failed = false, tryNext;
if (value.isObject()) {
done = (failed = !TrySetToDoubleSequence(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (!done) {
do {
done = (failed = !TrySetToDouble(cx, value, tryNext)) || !tryNext;
break;
} while (false);
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "sequence<double>");
return false;
}
return true;
}
bool
DoubleOrDoubleSequence::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
bool
DoubleOrDoubleSequence::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eDouble: {
rval.set(JS_NumberValue(double(mValue.mDouble.Value())));
return true;
}
case eDoubleSequence: {
uint32_t length = mValue.mDoubleSequence.Value().Length();
JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
if (!returnArray) {
return false;
}
// Scope for 'tmp'
{
JS::Rooted<JS::Value> tmp(cx);
for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
// Control block to let us common up the JS_DefineElement calls when there
// are different ways to succeed at wrapping the object.
do {
tmp.set(JS_NumberValue(double(mValue.mDoubleSequence.Value()[sequenceIdx0])));
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
return false;
}
}
}
rval.setObject(*returnArray);
return true;
}
default: {
return false;
}
}
}
OwningDoubleOrDoubleSequence::OwningDoubleOrDoubleSequence(OwningDoubleOrDoubleSequence&& aOther)
: mType(eUninitialized)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eDouble: {
mType = eDouble;
mValue.mDouble.SetValue(std::move(aOther.mValue.mDouble.Value()));
break;
}
case eDoubleSequence: {
mType = eDoubleSequence;
mValue.mDoubleSequence.SetValue(std::move(aOther.mValue.mDoubleSequence.Value()));
break;
}
}
}
bool
OwningDoubleOrDoubleSequence::TrySetToDouble(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
double& memberSlot = RawSetAsDouble();
if (!ValueToPrimitive<double, eDefault>(cx, value, "Double branch of (double or sequence<double>)", &memberSlot)) {
return false;
} else if (!std::isfinite(memberSlot)) {
cx.ThrowErrorMessage<MSG_NOT_FINITE>("Double branch of (double or sequence<double>)");
return false;
}
}
return true;
}
bool
OwningDoubleOrDoubleSequence::TrySetToDouble(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToDouble(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] double&
OwningDoubleOrDoubleSequence::RawSetAsDouble()
{
if (mType == eDouble) {
return mValue.mDouble.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eDouble;
return mValue.mDouble.SetValue();
}
[[nodiscard]] double&
OwningDoubleOrDoubleSequence::SetAsDouble()
{
if (mType == eDouble) {
return mValue.mDouble.Value();
}
Uninit();
mType = eDouble;
return mValue.mDouble.SetValue();
}
void
OwningDoubleOrDoubleSequence::DestroyDouble()
{
MOZ_RELEASE_ASSERT(IsDouble(), "Wrong type!");
mValue.mDouble.Destroy();
mType = eUninitialized;
}
bool
OwningDoubleOrDoubleSequence::TrySetToDoubleSequence(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
Sequence<double>& memberSlot = RawSetAsDoubleSequence();
JS::ForOfIterator iter(cx);
if (!iter.init(value, JS::ForOfIterator::AllowNonIterable)) {
return false;
}
if (!iter.valueIsIterable()) {
DestroyDoubleSequence();
tryNext = true;
return true;
}
Sequence<double> &arr = memberSlot;
JS::Rooted<JS::Value> temp(cx);
while (true) {
bool done;
if (!iter.next(&temp, &done)) {
return false;
}
if (done) {
break;
}
double* slotPtr = arr.AppendElement(mozilla::fallible);
if (!slotPtr) {
JS_ReportOutOfMemory(cx);
return false;
}
double& slot = *slotPtr;
if (!ValueToPrimitive<double, eDefault>(cx, temp, "Element of sequence<double> branch of (double or sequence<double>)", &slot)) {
return false;
} else if (!std::isfinite(slot)) {
cx.ThrowErrorMessage<MSG_NOT_FINITE>("Element of sequence<double> branch of (double or sequence<double>)");
return false;
}
}
}
return true;
}
bool
OwningDoubleOrDoubleSequence::TrySetToDoubleSequence(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToDoubleSequence(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] Sequence<double>&
OwningDoubleOrDoubleSequence::RawSetAsDoubleSequence()
{
if (mType == eDoubleSequence) {
return mValue.mDoubleSequence.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eDoubleSequence;
return mValue.mDoubleSequence.SetValue();
}
[[nodiscard]] Sequence<double>&
OwningDoubleOrDoubleSequence::SetAsDoubleSequence()
{
if (mType == eDoubleSequence) {
return mValue.mDoubleSequence.Value();
}
Uninit();
mType = eDoubleSequence;
return mValue.mDoubleSequence.SetValue();
}
void
OwningDoubleOrDoubleSequence::DestroyDoubleSequence()
{
MOZ_RELEASE_ASSERT(IsDoubleSequence(), "Wrong type!");
mValue.mDoubleSequence.Destroy();
mType = eUninitialized;
}
bool
OwningDoubleOrDoubleSequence::Init(BindingCallContext& cx, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
MOZ_ASSERT(mType == eUninitialized);
bool done = false, failed = false, tryNext;
if (value.isObject()) {
done = (failed = !TrySetToDoubleSequence(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (!done) {
do {
done = (failed = !TrySetToDouble(cx, value, tryNext)) || !tryNext;
break;
} while (false);
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "sequence<double>");
return false;
}
return true;
}
bool
OwningDoubleOrDoubleSequence::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
void
OwningDoubleOrDoubleSequence::Uninit()
{
switch (mType) {
case eUninitialized: {
break;
}
case eDouble: {
DestroyDouble();
break;
}
case eDoubleSequence: {
DestroyDoubleSequence();
break;
}
}
}
bool
OwningDoubleOrDoubleSequence::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eDouble: {
rval.set(JS_NumberValue(double(mValue.mDouble.Value())));
return true;
}
case eDoubleSequence: {
uint32_t length = mValue.mDoubleSequence.Value().Length();
JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
if (!returnArray) {
return false;
}
// Scope for 'tmp'
{
JS::Rooted<JS::Value> tmp(cx);
for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
// Control block to let us common up the JS_DefineElement calls when there
// are different ways to succeed at wrapping the object.
do {
tmp.set(JS_NumberValue(double(mValue.mDoubleSequence.Value()[sequenceIdx0])));
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
return false;
}
}
}
rval.setObject(*returnArray);
return true;
}
default: {
return false;
}
}
}
OwningDoubleOrDoubleSequence&
OwningDoubleOrDoubleSequence::operator=(OwningDoubleOrDoubleSequence&& aOther)
{
this->~OwningDoubleOrDoubleSequence();
new (this) OwningDoubleOrDoubleSequence (std::move(aOther));
return *this;
}
OwningDoubleOrDoubleSequence&
OwningDoubleOrDoubleSequence::operator=(const OwningDoubleOrDoubleSequence& aOther)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eDouble: {
SetAsDouble() = aOther.GetAsDouble();
break;
}
case eDoubleSequence: {
SetAsDoubleSequence() = aOther.GetAsDoubleSequence();
break;
}
}
return *this;
}
bool
ElementOrDocument::TrySetToElement(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
NonNull<mozilla::dom::Element>& memberSlot = RawSetAsElement();
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Element, mozilla::dom::Element>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyElement();
tryNext = true;
return true;
}
}
}
return true;
}
bool
ElementOrDocument::TrySetToElement(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToElement(cx, value, tryNext, passedToJSImpl);
}
bool
ElementOrDocument::TrySetToDocument(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
NonNull<mozilla::dom::Document>& memberSlot = RawSetAsDocument();
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Document, mozilla::dom::Document>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyDocument();
tryNext = true;
return true;
}
}
}
return true;
}
bool
ElementOrDocument::TrySetToDocument(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToDocument(cx, value, tryNext, passedToJSImpl);
}
bool
ElementOrDocument::Init(BindingCallContext& cx, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
MOZ_ASSERT(mType == eUninitialized);
bool done = false, failed = false, tryNext;
if (value.isObject()) {
done = (failed = !TrySetToElement(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToDocument(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "Element, Document");
return false;
}
return true;
}
bool
ElementOrDocument::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
bool
ElementOrDocument::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eElement: {
if (!GetOrCreateDOMReflector(cx, mValue.mElement.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
case eDocument: {
if (!GetOrCreateDOMReflector(cx, mValue.mDocument.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
default: {
return false;
}
}
}
OwningElementOrDocument::OwningElementOrDocument(OwningElementOrDocument&& aOther)
: mType(eUninitialized)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eElement: {
mType = eElement;
mValue.mElement.SetValue(std::move(aOther.mValue.mElement.Value()));
break;
}
case eDocument: {
mType = eDocument;
mValue.mDocument.SetValue(std::move(aOther.mValue.mDocument.Value()));
break;
}
}
}
bool
OwningElementOrDocument::TrySetToElement(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
OwningNonNull<mozilla::dom::Element>& memberSlot = RawSetAsElement();
static_assert(IsRefcounted<mozilla::dom::Element>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Element, mozilla::dom::Element>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyElement();
tryNext = true;
return true;
}
}
}
return true;
}
bool
OwningElementOrDocument::TrySetToElement(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToElement(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] OwningNonNull<mozilla::dom::Element>&
OwningElementOrDocument::RawSetAsElement()
{
if (mType == eElement) {
return mValue.mElement.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eElement;
return mValue.mElement.SetValue();
}
[[nodiscard]] OwningNonNull<mozilla::dom::Element>&
OwningElementOrDocument::SetAsElement()
{
if (mType == eElement) {
return mValue.mElement.Value();
}
Uninit();
mType = eElement;
return mValue.mElement.SetValue();
}
void
OwningElementOrDocument::DestroyElement()
{
MOZ_RELEASE_ASSERT(IsElement(), "Wrong type!");
mValue.mElement.Destroy();
mType = eUninitialized;
}
bool
OwningElementOrDocument::TrySetToDocument(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
OwningNonNull<mozilla::dom::Document>& memberSlot = RawSetAsDocument();
static_assert(IsRefcounted<mozilla::dom::Document>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Document, mozilla::dom::Document>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyDocument();
tryNext = true;
return true;
}
}
}
return true;
}
bool
OwningElementOrDocument::TrySetToDocument(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToDocument(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] OwningNonNull<mozilla::dom::Document>&
OwningElementOrDocument::RawSetAsDocument()
{
if (mType == eDocument) {
return mValue.mDocument.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eDocument;
return mValue.mDocument.SetValue();
}
[[nodiscard]] OwningNonNull<mozilla::dom::Document>&
OwningElementOrDocument::SetAsDocument()
{
if (mType == eDocument) {
return mValue.mDocument.Value();
}
Uninit();
mType = eDocument;
return mValue.mDocument.SetValue();
}
void
OwningElementOrDocument::DestroyDocument()
{
MOZ_RELEASE_ASSERT(IsDocument(), "Wrong type!");
mValue.mDocument.Destroy();
mType = eUninitialized;
}
bool
OwningElementOrDocument::Init(BindingCallContext& cx, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
MOZ_ASSERT(mType == eUninitialized);
bool done = false, failed = false, tryNext;
if (value.isObject()) {
done = (failed = !TrySetToElement(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToDocument(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "Element, Document");
return false;
}
return true;
}
bool
OwningElementOrDocument::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
void
OwningElementOrDocument::Uninit()
{
switch (mType) {
case eUninitialized: {
break;
}
case eElement: {
DestroyElement();
break;
}
case eDocument: {
DestroyDocument();
break;
}
}
}
bool
OwningElementOrDocument::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eElement: {
if (!GetOrCreateDOMReflector(cx, mValue.mElement.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
case eDocument: {
if (!GetOrCreateDOMReflector(cx, mValue.mDocument.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
default: {
return false;
}
}
}
OwningElementOrDocument&
OwningElementOrDocument::operator=(OwningElementOrDocument&& aOther)
{
this->~OwningElementOrDocument();
new (this) OwningElementOrDocument (std::move(aOther));
return *this;
}
OwningElementOrDocument&
OwningElementOrDocument::operator=(const OwningElementOrDocument& aOther)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eElement: {
SetAsElement() = aOther.GetAsElement();
break;
}
case eDocument: {
SetAsDocument() = aOther.GetAsDocument();
break;
}
}
return *this;
}
MOZ_CAN_RUN_SCRIPT void
IntersectionCallback::Call(BindingCallContext& cx, JS::Handle<JS::Value> aThisVal, const Sequence<OwningNonNull<DOMIntersectionObserverEntry>>& entries, DOMIntersectionObserver& observer, ErrorResult& aRv)
{
JS::Rooted<JS::Value> rval(cx);
JS::RootedVector<JS::Value> argv(cx);
if (!argv.resize(2)) {
// That threw an exception on the JSContext, and our CallSetup will do
// the right thing with that.
return;
}
unsigned argc = 2;
do {
if (!GetOrCreateDOMReflector(cx, observer, argv[1])) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
break;
} while (false);
do {
uint32_t length = entries.Length();
JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
if (!returnArray) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
// Scope for 'tmp'
{
JS::Rooted<JS::Value> tmp(cx);
for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
// Control block to let us common up the JS_DefineElement calls when there
// are different ways to succeed at wrapping the object.
do {
if (!GetOrCreateDOMReflector(cx, entries[sequenceIdx0], &tmp)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
}
}
argv[0].setObject(*returnArray);
break;
} while (false);
JS::Rooted<JS::Value> callable(cx, JS::ObjectValue(*mCallback));
if (!JS::Call(cx, aThisVal, callable,
JS::HandleValueArray::subarray(argv, 0, argc), &rval)) {
aRv.NoteJSContextException(cx);
return;
}
}
IntersectionObserverEntryInit::IntersectionObserverEntryInit()
: mBoundingClientRect(FastDictionaryInitializer()),
mIntersectionRect(FastDictionaryInitializer()),
mRootBounds(FastDictionaryInitializer())
{
// Safe to pass a null context if we pass a null value
Init();
}
bool
IntersectionObserverEntryInit::InitIds(JSContext* cx, IntersectionObserverEntryInitAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->time_id.init(cx, "time") ||
!atomsCache->target_id.init(cx, "target") ||
!atomsCache->rootBounds_id.init(cx, "rootBounds") ||
!atomsCache->intersectionRect_id.init(cx, "intersectionRect") ||
!atomsCache->boundingClientRect_id.init(cx, "boundingClientRect")) {
return false;
}
return true;
}
bool
IntersectionObserverEntryInit::Init(const char* sourceDescription, bool passedToJSImpl)
{
return true;
}
void
IntersectionObserverEntryInit::TraceDictionary(JSTracer* trc)
{
}
IntersectionObserverEntryInit&
IntersectionObserverEntryInit::operator=(const IntersectionObserverEntryInit& aOther)
{
DictionaryBase::operator=(aOther);
mBoundingClientRect = aOther.mBoundingClientRect;
mIntersectionRect = aOther.mIntersectionRect;
mRootBounds = aOther.mRootBounds;
mTarget = aOther.mTarget;
mTime = aOther.mTime;
return *this;
}
IntersectionObserverInit::IntersectionObserverInit()
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
IntersectionObserverInit::InitIds(JSContext* cx, IntersectionObserverInitAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->threshold_id.init(cx, "threshold") ||
!atomsCache->rootMargin_id.init(cx, "rootMargin") ||
!atomsCache->root_id.init(cx, "root")) {
return false;
}
return true;
}
bool
IntersectionObserverInit::Init(BindingCallContext& cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
// Passing a null JSContext is OK only if we're initing from null,
// Since in that case we will not have to do any property gets
// Also evaluate isNullOrUndefined in order to avoid false-positive
// checkers by static analysis tools
MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
IntersectionObserverInitAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<IntersectionObserverInitAtoms>(cx);
if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
!InitIds(cx, atomsCache)) {
return false;
}
}
if (!IsConvertibleToDictionary(val)) {
return cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>(sourceDescription, "dictionary");
}
bool isNull = val.isNullOrUndefined();
// We only need these if !isNull, in which case we have |cx|.
Maybe<JS::Rooted<JSObject *> > object;
Maybe<JS::Rooted<JS::Value> > temp;
if (!isNull) {
MOZ_ASSERT(cx);
object.emplace(cx, &val.toObject());
temp.emplace(cx);
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->root_id, temp.ptr())) {
return false;
}
}
if (!(!isNull && !temp->isUndefined()) || temp.ref().isNullOrUndefined()) {
mRoot.SetNull();
} else {
if (!mRoot.SetValue().Init(cx, temp.ref(), "'root' member of IntersectionObserverInit", passedToJSImpl)) {
return false;
}
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->rootMargin_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mRootMargin)) {
return false;
}
} else {
mRootMargin.AssignLiteral("0px");
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->threshold_id, temp.ptr())) {
return false;
}
}
mThreshold.Uninit();
if (!(!isNull && !temp->isUndefined())) {
mThreshold.RawSetAsDouble() = 0.0;
} else {
if (!mThreshold.Init(cx, temp.ref(), "'threshold' member of IntersectionObserverInit", passedToJSImpl)) {
return false;
}
}
mIsAnyMemberPresent = true;
return true;
}
bool
IntersectionObserverInit::Init(JSContext* cx_, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
// We don't want to use sourceDescription for our context here;
// that's not really what it's formatted for.
BindingCallContext cx(cx_, nullptr);
return Init(cx, val, sourceDescription, passedToJSImpl);
}
void
IntersectionObserverInit::TraceDictionary(JSTracer* trc)
{
}
IntersectionObserverInit&
IntersectionObserverInit::operator=(const IntersectionObserverInit& aOther)
{
DictionaryBase::operator=(aOther);
mRoot = aOther.mRoot;
mRootMargin = aOther.mRootMargin;
mThreshold = aOther.mThreshold;
return *this;
}
namespace IntersectionObserver_Binding {
MOZ_CAN_RUN_SCRIPT static bool
get_root(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "root", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
auto result(StrongOrRawPtr<nsINode>(MOZ_KnownLive(self)->GetRoot()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!result) {
args.rval().setNull();
return true;
}
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo root_getterinfo = {
{ get_root },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_rootMargin(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "rootMargin", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
nsAutoCString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetRootMargin(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetRootMargin(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!NonVoidUTF8StringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo rootMargin_getterinfo = {
{ get_rootMargin },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_thresholds(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "thresholds", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
// Have to either root across the getter call or reget after.
bool isXray;
JS::Rooted<JSObject*> slotStorage(cx, GetCachedSlotStorageObject(cx, obj, &isXray));
if (!slotStorage) {
return false;
}
const size_t slotIndex = isXray ? (xpc::JSSLOT_EXPANDO_COUNT + 0) : (DOM_INSTANCE_RESERVED_SLOTS + 0);
MOZ_ASSERT(JSCLASS_RESERVED_SLOTS(JS::GetClass(slotStorage)) > slotIndex);
{
// Scope for cachedVal
JS::Value cachedVal = JS::GetReservedSlot(slotStorage, slotIndex);
if (!cachedVal.isUndefined()) {
args.rval().set(cachedVal);
// The cached value is in the compartment of slotStorage,
// so wrap into the caller compartment as needed.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
}
nsTArray<double> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetThresholds(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetThresholds(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
{
JS::Rooted<JSObject*> conversionScope(cx, isXray ? JS::CurrentGlobalOrNull(cx) : slotStorage);
JSAutoRealm ar(cx, conversionScope);
do { // block we break out of when done wrapping
uint32_t length = result.Length();
JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
if (!returnArray) {
return false;
}
// Scope for 'tmp'
{
JS::Rooted<JS::Value> tmp(cx);
for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
// Control block to let us common up the JS_DefineElement calls when there
// are different ways to succeed at wrapping the object.
do {
tmp.set(JS_NumberValue(double(result[sequenceIdx0])));
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
return false;
}
}
}
args.rval().setObject(*returnArray);
break;
} while (false);
}
{ // And now store things in the realm of our slotStorage.
JSAutoRealm ar(cx, slotStorage);
// Make a copy so that we don't do unnecessary wrapping on args.rval().
JS::Rooted<JS::Value> storedVal(cx, args.rval());
if (!MaybeWrapNonDOMObjectValue(cx, &storedVal)) {
return false;
}
JS::SetReservedSlot(slotStorage, slotIndex, storedVal);
if (!isXray) {
// In the Xray case we don't need to do this, because getting the
// expando object already preserved our wrapper.
PreserveWrapper(self);
}
}
// And now make sure args.rval() is in the caller realm.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
static const JSJitInfo thresholds_getterinfo = {
{ get_thresholds },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
true, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
(DOM_INSTANCE_RESERVED_SLOTS + 0) /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) < 2, "There is no slot for us");
MOZ_CAN_RUN_SCRIPT static bool
observe(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "IntersectionObserver.observe");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "observe", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
if (!args.requireAtLeast(cx, "IntersectionObserver.observe", 1)) {
return false;
}
NonNull<mozilla::dom::Element> arg0;
if (args[0].isObject()) {
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Element, mozilla::dom::Element>(args[0], arg0, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Argument 1", "Element");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->Observe(MOZ_KnownLive(NonNullHelper(arg0))))>, "Should be returning void here");
MOZ_KnownLive(self)->Observe(MOZ_KnownLive(NonNullHelper(arg0)));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo observe_methodinfo = {
{ (JSJitGetterOp)observe },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Method,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
unobserve(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "IntersectionObserver.unobserve");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "unobserve", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
if (!args.requireAtLeast(cx, "IntersectionObserver.unobserve", 1)) {
return false;
}
NonNull<mozilla::dom::Element> arg0;
if (args[0].isObject()) {
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Element, mozilla::dom::Element>(args[0], arg0, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Argument 1", "Element");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->Unobserve(MOZ_KnownLive(NonNullHelper(arg0))))>, "Should be returning void here");
MOZ_KnownLive(self)->Unobserve(MOZ_KnownLive(NonNullHelper(arg0)));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo unobserve_methodinfo = {
{ (JSJitGetterOp)unobserve },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Method,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
disconnect(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "disconnect", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->Disconnect())>, "Should be returning void here");
MOZ_KnownLive(self)->Disconnect();
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo disconnect_methodinfo = {
{ (JSJitGetterOp)disconnect },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Method,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
true, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
takeRecords(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "takeRecords", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserver*>(void_self);
nsTArray<StrongPtrForMember<mozilla::dom::DOMIntersectionObserverEntry>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->TakeRecords(result))>, "Should be returning void here");
MOZ_KnownLive(self)->TakeRecords(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
uint32_t length = result.Length();
JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
if (!returnArray) {
return false;
}
// Scope for 'tmp'
{
JS::Rooted<JS::Value> tmp(cx);
for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
// Control block to let us common up the JS_DefineElement calls when there
// are different ways to succeed at wrapping the object.
do {
if (!GetOrCreateDOMReflector(cx, result[sequenceIdx0], &tmp)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
return false;
}
}
}
args.rval().setObject(*returnArray);
return true;
}
static const JSJitInfo takeRecords_methodinfo = {
{ (JSJitGetterOp)takeRecords },
{ prototypes::id::IntersectionObserver },
{ PrototypeTraits<prototypes::id::IntersectionObserver>::Depth },
JSJitInfo::Method,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
mozilla::dom::DOMIntersectionObserver* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserver>(obj);
// We don't want to preserve if we don't have a wrapper, and we
// obviously can't preserve if we're not initialized.
if (self && self->GetWrapperPreserveColor()) {
PreserveWrapper(self);
}
return true;
}
static void
_finalize(JS::GCContext* gcx, JSObject* obj)
{
mozilla::dom::DOMIntersectionObserver* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserver>(obj);
if (self) {
JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
ClearWrapper(self, self, obj);
if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
JS::RemoveAssociatedMemory(obj, mallocBytes,
JS::MemoryUse::DOMBinding);
}
AddForDeferredFinalization<mozilla::dom::DOMIntersectionObserver>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
mozilla::dom::DOMIntersectionObserver* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserver>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
mozilla::dom::DOMIntersectionObserver* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserver>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSFunctionSpec sMethods_specs[] = {
JS_FNSPEC("observe", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&observe_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("unobserve", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&unobserve_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("disconnect", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&disconnect_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("takeRecords", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&takeRecords_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FS_END
};
static const Prefable<const JSFunctionSpec> sMethods[] = {
{ nullptr, &sMethods_specs[0] },
{ nullptr, nullptr }
};
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
"We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(4 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static const JSPropertySpec sAttributes_specs[] = {
JSPropertySpec::nativeAccessors("root", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &root_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("rootMargin", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &rootMargin_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("thresholds", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &thresholds_getterinfo, nullptr, nullptr),
JS_PS_END
};
static const Prefable<const JSPropertySpec> sAttributes[] = {
{ nullptr, &sAttributes_specs[0] },
{ nullptr, nullptr }
};
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
"We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static uint16_t sNativeProperties_sortedPropertyIndices[7];
static PropertyInfo sNativeProperties_propertyInfos[7];
static const NativePropertiesN<2> sNativeProperties = {
false, 0,
false, 0,
true, 0 /* sMethods */,
true, 1 /* sAttributes */,
false, 0,
false, 0,
false, 0,
-1,
7,
sNativeProperties_sortedPropertyIndices,
{
{ sMethods, &sNativeProperties_propertyInfos[0] },
{ sAttributes, &sNativeProperties_propertyInfos[4] }
}
};
static_assert(7 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
// This may allocate too many slots, because we only really need
// slots for our non-interface-typed members that we cache. But
// allocating slots only for those would make the slot index
// computations much more complicated, so let's do this the simple
// way for now.
DEFINE_XRAY_EXPANDO_CLASS(static, sXrayExpandoObjectClass, 1);
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
prototypes::id::IntersectionObserver,
constructors::id::IntersectionObserver,
&sXrayExpandoObjectClass
};
static bool
_constructor(JSContext* cx_, unsigned argc, JS::Value* vp)
{
BindingCallContext cx(cx_, "IntersectionObserver constructor");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserver", "constructor", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
JS::Rooted<JSObject*> obj(cx, &args.callee());
if (!args.isConstructing()) {
return ThrowConstructorWithoutNew(cx, "IntersectionObserver");
}
JS::Rooted<JSObject*> desiredProto(cx);
if (!GetDesiredProto(cx, args,
prototypes::id::IntersectionObserver,
CreateInterfaceObjects,
&desiredProto)) {
return false;
}
if (!args.requireAtLeast(cx, "IntersectionObserver constructor", 1)) {
return false;
}
GlobalObject global(cx, obj);
if (global.Failed()) {
return false;
}
bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
RootedCallback<OwningNonNull<binding_detail::FastIntersectionCallback>> arg0(cx);
if (args[0].isObject()) {
if (JS::IsCallable(&args[0].toObject())) {
{ // scope for tempRoot and tempGlobalRoot if needed
arg0 = new binding_detail::FastIntersectionCallback(&args[0].toObject(), JS::CurrentGlobalOrNull(cx));
}
} else {
cx.ThrowErrorMessage<MSG_NOT_CALLABLE>("Argument 1");
return false;
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
binding_detail::FastIntersectionObserverInit arg1;
if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) {
return false;
}
Maybe<JSAutoRealm> ar;
if (objIsXray) {
// Since our object is an Xray, we can just CheckedUnwrapStatic:
// we know Xrays have no dynamic unwrap behavior.
obj = js::CheckedUnwrapStatic(obj);
if (!obj) {
return false;
}
ar.emplace(cx, obj);
if (!JS_WrapObject(cx, &desiredProto)) {
return false;
}
}
FastErrorResult rv;
auto result(StrongOrRawPtr<mozilla::dom::DOMIntersectionObserver>(mozilla::dom::DOMIntersectionObserver::Constructor(global, MOZ_KnownLive(NonNullHelper(arg0)), Constify(arg1), rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "IntersectionObserver constructor"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
static_assert(!std::is_pointer_v<decltype(result)>,
"NewObject implies that we need to keep the object alive with a strong reference.");
if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const DOMInterfaceInfo sInterfaceObjectInfo = {
{ _constructor, &sNativePropertyHooks },
JS::GetRealmFunctionPrototype,
prototypes::id::IntersectionObserver,
PrototypeTraits<prototypes::id::IntersectionObserver>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"IntersectionObserverPrototype",
JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
JS_NULL_CLASS_OPS,
JS_NULL_CLASS_SPEC,
JS_NULL_CLASS_EXT,
JS_NULL_OBJECT_OPS
},
eInterfacePrototype,
prototypes::id::IntersectionObserver,
PrototypeTraits<prototypes::id::IntersectionObserver>::Depth,
&sNativePropertyHooks,
JS::GetRealmObjectPrototype
};
static const JSClassOps sClassOps = {
_addProperty, /* addProperty */
nullptr, /* delProperty */
nullptr, /* enumerate */
nullptr, /* newEnumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
_finalize, /* finalize */
nullptr, /* call */
nullptr, /* construct */
nullptr, /* trace */
};
static const js::ClassExtension sClassExtension = {
_objectMoved /* objectMovedOp */
};
static const DOMJSClass sClass = {
{ "IntersectionObserver",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2),
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::IntersectionObserver, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
std::is_base_of_v<nsISupports, mozilla::dom::DOMIntersectionObserver>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<mozilla::dom::DOMIntersectionObserver>::Get,
GetProtoObjectHandle,
GetCCParticipant<mozilla::dom::DOMIntersectionObserver>::Get(),
nullptr,
_getWrapperCache
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
"Must have the right minimal number of reserved slots.");
static_assert(2 >= 2,
"Must have enough reserved slots.");
bool
Wrap(JSContext* aCx, mozilla::dom::DOMIntersectionObserver* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::DOMIntersectionObserver>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), mozilla::dom::DOMIntersectionObserver*>);
MOZ_ASSERT(ToSupportsIsCorrect(aObject));
MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
MOZ_ASSERT(!aCache->GetWrapper(),
"You should probably not be using Wrap() directly; use "
"GetOrCreateDOMReflector instead");
MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
"nsISupports must be on our primary inheritance chain");
// If the wrapper cache contains a dead reflector then finalize that
// now, ensuring that the finalizer for the old reflector always
// runs before the new reflector is created and attached. This
// avoids the awkward situation where there are multiple reflector
// objects that contain pointers to the same native.
if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) {
_finalize(nullptr /* unused */, oldReflector);
MOZ_ASSERT(!aCache->GetWrapperMaybeDead());
}
JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
if (!global) {
return false;
}
MOZ_ASSERT(JS_IsGlobalObject(global));
JS::AssertObjectIsNotGray(global);
// That might have ended up wrapping us already, due to the wonders
// of XBL. Check for that, and bail out as needed.
aReflector.set(aCache->GetWrapper());
if (aReflector) {
#ifdef DEBUG
AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
return true;
}
JSAutoRealm ar(aCx, global);
JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
if (!canonicalProto) {
return false;
}
JS::Rooted<JSObject*> proto(aCx);
if (aGivenProto) {
proto = aGivenProto;
// Unfortunately, while aGivenProto was in the compartment of aCx
// coming in, we changed compartments to that of "parent" so may need
// to wrap the proto here.
if (js::GetContextCompartment(aCx) != JS::GetCompartment(proto)) {
if (!JS_WrapObject(aCx, &proto)) {
return false;
}
}
} else {
proto = canonicalProto;
}
BindingJSObjectCreator<mozilla::dom::DOMIntersectionObserver> creator(aCx);
creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
if (!aReflector) {
return false;
}
aCache->SetWrapper(aReflector);
creator.InitializationSucceeded();
MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
aCache->GetWrapperPreserveColor() == aReflector);
// If proto != canonicalProto, we have to preserve our wrapper;
// otherwise we won't be able to properly recreate it later, since
// we won't know what proto to use. Note that we don't check
// aGivenProto here, since it's entirely possible (and even
// somewhat common) to have a non-null aGivenProto which is the
// same as canonicalProto.
if (proto != canonicalProto) {
PreserveWrapper(aObject);
}
return true;
}
void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::IntersectionObserver);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::IntersectionObserver);
JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
if (!parentProto) {
return;
}
JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
if (!constructorProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
constructorProto, &sInterfaceObjectInfo, 1, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
nullptr,
"IntersectionObserver", aDefineOnGlobal,
nullptr,
false,
nullptr);
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace IntersectionObserver_Binding
namespace IntersectionObserverEntry_Binding {
MOZ_CAN_RUN_SCRIPT static bool
get_time(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "time", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
double result(MOZ_KnownLive(self)->Time());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().set(JS_NumberValue(double(result)));
return true;
}
static const JSJitInfo time_getterinfo = {
{ get_time },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_DOUBLE, /* returnType. Not relevant for setters. */
true, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_rootBounds(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "rootBounds", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
auto result(StrongOrRawPtr<mozilla::dom::DOMRectReadOnly>(MOZ_KnownLive(self)->GetRootBounds()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!result) {
args.rval().setNull();
return true;
}
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo rootBounds_getterinfo = {
{ get_rootBounds },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_boundingClientRect(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "boundingClientRect", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
auto result(StrongOrRawPtr<mozilla::dom::DOMRectReadOnly>(MOZ_KnownLive(self)->BoundingClientRect()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo boundingClientRect_getterinfo = {
{ get_boundingClientRect },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_intersectionRect(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "intersectionRect", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
auto result(StrongOrRawPtr<mozilla::dom::DOMRectReadOnly>(MOZ_KnownLive(self)->IntersectionRect()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo intersectionRect_getterinfo = {
{ get_intersectionRect },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_isIntersecting(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "isIntersecting", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
bool result(MOZ_KnownLive(self)->IsIntersecting());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setBoolean(result);
return true;
}
static const JSJitInfo isIntersecting_getterinfo = {
{ get_isIntersecting },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_BOOLEAN, /* returnType. Not relevant for setters. */
true, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_intersectionRatio(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "intersectionRatio", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
double result(MOZ_KnownLive(self)->IntersectionRatio());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().set(JS_NumberValue(double(result)));
return true;
}
static const JSJitInfo intersectionRatio_getterinfo = {
{ get_intersectionRatio },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_DOUBLE, /* returnType. Not relevant for setters. */
true, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_target(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"IntersectionObserverEntry", "target", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::DOMIntersectionObserverEntry*>(void_self);
auto result(StrongOrRawPtr<mozilla::dom::Element>(MOZ_KnownLive(self)->Target()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo target_getterinfo = {
{ get_target },
{ prototypes::id::IntersectionObserverEntry },
{ PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
mozilla::dom::DOMIntersectionObserverEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserverEntry>(obj);
// We don't want to preserve if we don't have a wrapper, and we
// obviously can't preserve if we're not initialized.
if (self && self->GetWrapperPreserveColor()) {
PreserveWrapper(self);
}
return true;
}
static void
_finalize(JS::GCContext* gcx, JSObject* obj)
{
mozilla::dom::DOMIntersectionObserverEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserverEntry>(obj);
if (self) {
JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
ClearWrapper(self, self, obj);
if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
JS::RemoveAssociatedMemory(obj, mallocBytes,
JS::MemoryUse::DOMBinding);
}
AddForDeferredFinalization<mozilla::dom::DOMIntersectionObserverEntry>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
mozilla::dom::DOMIntersectionObserverEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserverEntry>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
mozilla::dom::DOMIntersectionObserverEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMIntersectionObserverEntry>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSPropertySpec sAttributes_specs[] = {
JSPropertySpec::nativeAccessors("time", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &time_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("rootBounds", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &rootBounds_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("boundingClientRect", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &boundingClientRect_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("intersectionRect", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &intersectionRect_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("isIntersecting", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &isIntersecting_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("intersectionRatio", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &intersectionRatio_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("target", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &target_getterinfo, nullptr, nullptr),
JS_PS_END
};
static const Prefable<const JSPropertySpec> sAttributes[] = {
{ nullptr, &sAttributes_specs[0] },
{ nullptr, nullptr }
};
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
"We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(7 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static uint16_t sNativeProperties_sortedPropertyIndices[7];
static PropertyInfo sNativeProperties_propertyInfos[7];
static const NativePropertiesN<1> sNativeProperties = {
false, 0,
false, 0,
false, 0,
true, 0 /* sAttributes */,
false, 0,
false, 0,
false, 0,
-1,
7,
sNativeProperties_sortedPropertyIndices,
{
{ sAttributes, &sNativeProperties_propertyInfos[0] }
}
};
static_assert(7 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
prototypes::id::IntersectionObserverEntry,
constructors::id::IntersectionObserverEntry,
&DefaultXrayExpandoObjectClass
};
static const DOMInterfaceInfo sInterfaceObjectInfo = {
{ ThrowingConstructor, &sNativePropertyHooks },
JS::GetRealmFunctionPrototype,
prototypes::id::IntersectionObserverEntry,
PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"IntersectionObserverEntryPrototype",
JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
JS_NULL_CLASS_OPS,
JS_NULL_CLASS_SPEC,
JS_NULL_CLASS_EXT,
JS_NULL_OBJECT_OPS
},
eInterfacePrototype,
prototypes::id::IntersectionObserverEntry,
PrototypeTraits<prototypes::id::IntersectionObserverEntry>::Depth,
&sNativePropertyHooks,
JS::GetRealmObjectPrototype
};
static const JSClassOps sClassOps = {
_addProperty, /* addProperty */
nullptr, /* delProperty */
nullptr, /* enumerate */
nullptr, /* newEnumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
_finalize, /* finalize */
nullptr, /* call */
nullptr, /* construct */
nullptr, /* trace */
};
static const js::ClassExtension sClassExtension = {
_objectMoved /* objectMovedOp */
};
static const DOMJSClass sClass = {
{ "IntersectionObserverEntry",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_SKIP_NURSERY_FINALIZE,
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::IntersectionObserverEntry, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
std::is_base_of_v<nsISupports, mozilla::dom::DOMIntersectionObserverEntry>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<mozilla::dom::DOMIntersectionObserverEntry>::Get,
GetProtoObjectHandle,
GetCCParticipant<mozilla::dom::DOMIntersectionObserverEntry>::Get(),
nullptr,
_getWrapperCache
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
"Must have the right minimal number of reserved slots.");
static_assert(1 >= 1,
"Must have enough reserved slots.");
bool
Wrap(JSContext* aCx, mozilla::dom::DOMIntersectionObserverEntry* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::DOMIntersectionObserverEntry>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), mozilla::dom::DOMIntersectionObserverEntry*>);
MOZ_ASSERT(ToSupportsIsCorrect(aObject));
MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
MOZ_ASSERT(!aCache->GetWrapper(),
"You should probably not be using Wrap() directly; use "
"GetOrCreateDOMReflector instead");
MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
"nsISupports must be on our primary inheritance chain");
// If the wrapper cache contains a dead reflector then finalize that
// now, ensuring that the finalizer for the old reflector always
// runs before the new reflector is created and attached. This
// avoids the awkward situation where there are multiple reflector
// objects that contain pointers to the same native.
if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) {
_finalize(nullptr /* unused */, oldReflector);
MOZ_ASSERT(!aCache->GetWrapperMaybeDead());
}
JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
if (!global) {
return false;
}
MOZ_ASSERT(JS_IsGlobalObject(global));
JS::AssertObjectIsNotGray(global);
// That might have ended up wrapping us already, due to the wonders
// of XBL. Check for that, and bail out as needed.
aReflector.set(aCache->GetWrapper());
if (aReflector) {
#ifdef DEBUG
AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
return true;
}
JSAutoRealm ar(aCx, global);
JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
if (!canonicalProto) {
return false;
}
JS::Rooted<JSObject*> proto(aCx);
if (aGivenProto) {
proto = aGivenProto;
// Unfortunately, while aGivenProto was in the compartment of aCx
// coming in, we changed compartments to that of "parent" so may need
// to wrap the proto here.
if (js::GetContextCompartment(aCx) != JS::GetCompartment(proto)) {
if (!JS_WrapObject(aCx, &proto)) {
return false;
}
}
} else {
proto = canonicalProto;
}
BindingJSObjectCreator<mozilla::dom::DOMIntersectionObserverEntry> creator(aCx);
creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
if (!aReflector) {
return false;
}
aCache->SetWrapper(aReflector);
creator.InitializationSucceeded();
MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
aCache->GetWrapperPreserveColor() == aReflector);
// If proto != canonicalProto, we have to preserve our wrapper;
// otherwise we won't be able to properly recreate it later, since
// we won't know what proto to use. Note that we don't check
// aGivenProto here, since it's entirely possible (and even
// somewhat common) to have a non-null aGivenProto which is the
// same as canonicalProto.
if (proto != canonicalProto) {
PreserveWrapper(aObject);
}
return true;
}
void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::IntersectionObserverEntry);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::IntersectionObserverEntry);
JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
if (!parentProto) {
return;
}
JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
if (!constructorProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
constructorProto, &sInterfaceObjectInfo, 0, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
nullptr,
"IntersectionObserverEntry", aDefineOnGlobal,
nullptr,
false,
nullptr);
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace IntersectionObserverEntry_Binding
} // namespace mozilla::dom